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fix(tools): preserve bounded fallback guidance

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Tianyi Cui
2026-07-23 03:15:15 +08:00
parent 2821826e2c
commit 94adb60e1a
15 changed files with 144 additions and 21 deletions
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.agents/notes/implemented/architecture/2026-07-19-cooperative-tool-cancellation.md
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@@ -36,7 +36,7 @@ An around-dispatch wrapper may replace `exec.signal` for its delegated lifetime
### Pre-aborted entry short-circuits after materialization
The registry first creates the call token, snapshots the visible definition's optional final-content callback, and losslessly snapshots and freezes the arguments. A materialization failure wins even when the caller signal is already aborted. After successful materialization, a pre-aborted signal skips `tools/pre-execute`, approval, `tools/execute`, `tools/post-execute`, and the tool body, then passes `ABORTED_BEFORE_DISPATCH` through that content-only callback before publishing exactly one frozen authoritative `tools/result`.
The registry first creates the call token, snapshots the visible definition's optional final-content callback, and losslessly snapshots and freezes the arguments. An argument-materialization failure wins even when the caller signal is already aborted. Before final content, the registry also losslessly snapshots the candidate result and converts a result-snapshot failure into an ordinary error, so the callback can still enforce its content invariant. After successful argument materialization, a pre-aborted signal skips `tools/pre-execute`, approval, `tools/execute`, `tools/post-execute`, and the tool body, then passes `ABORTED_BEFORE_DISPATCH` through that content-only callback before publishing exactly one frozen authoritative `tools/result`.
### Started work still reaches quiescence